56445221716522 has 8 divisors (see below), whose sum is σ = 84668669492256. Its totient is φ = 28222331885772.

The previous prime is 56445221716517. The next prime is 56445221716571. The reversal of 56445221716522 is 22561712254465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56445221716522² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56445221716522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139233238 + ... + 139638049.

It is an arithmetic number, because the mean of its divisors is an integer number (10583583686532).

Almost surely, 2^{56445221716522} is an apocalyptic number.

56445221716522 is a deficient number, since it is larger than the sum of its proper divisors (28223447775734).

56445221716522 is a wasteful number, since it uses less digits than its factorization.

56445221716522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278972492.

The product of its digits is 8064000, while the sum is 52.

The spelling of 56445221716522 in words is "fifty-six trillion, four hundred forty-five billion, two hundred twenty-one million, seven hundred sixteen thousand, five hundred twenty-two".